Re: [REGRESSION] asix: Lots of asix_rx_fixup() errors and slow transmissions

From: John Stultz
Date: Fri May 06 2016 - 14:38:38 EST


On Tue, May 3, 2016 at 2:16 PM, Dean Jenkins <Dean_Jenkins@xxxxxxxxxx> wrote:
> A good test would be to run "ping -c 1 -s $packet_length $ip_address" inside
> a script which has a loop with an increasing payload length $packet_length
> with a small delay between ping calls. This will show whether particular
> packet sizes trigger the failures.
>
> Then try with "ping -f -c 200 -s $packet_length $ip_address" to load up the
> USB link.

I've tried both of these on my x86_64 system. I can send single pings
up to 65507 without triggering the issue (after which I get errors
sending on the host side as I think I cross a 64k boundary with
headers, not the asix errors).

Then when I try ping -f -c 200 -s 65507 $ip_address, I don't see any
failures. I did it for a count of 2000 as well without any issues.

I'll be adding more debug prints in soon.

thanks
-john